On 1/11/24 15:48, Cousin Ricky wrote:
> Method 1 is adaptive in a minimal way:  If a pixel is not determined to require
> anti-aliasing, it is not sub-sampled at all.  That is, unless this was changed
> in POV-Ray 3.7, and the reference manual had not been updated to reflect the
> change.  I did notice that 3.7 does a better job of method 1 anti-aliasing than
> 3.6 did, but it still doesn't appear to sub-sample every pixel.
> 
> Perhaps +AM1 +RMn can specify the sub-sampling depth for any pixel that is not
> selected for anti-aliasing under the old algorithm.

Hmm... Yeah. I guess up front I was thinking if folks wanted to force 
the sub-sampling with method 1 they could specify a threshold of 0. I'll 
ponder & perhaps play with your idea in code.

I confess to seldom using method 1 due the left / top directional bias.

Bill P.

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